Voltech AT3600 User Manual page 89

V AT3600 U M
OLTECH SER
Where:
nom dB =
neg dB =
pos dB =
nom
neg%
pos%
min
max
low
upp
C
where
pri
sec
neg%
pos%
#np
#ns
δnp
δns
K
Notes
1. The conversions in the above tables are written in a form to make it easier for
2. Some changes in the tables above are not reversible.
T P E
EST ROGRAM DITOR
ANUAL
the nominal value for the [ dB ] limits
the negative error for the [ dB ] limits
the positive error for the [ dB ] limits
= the nominal value for the [ % ] limits
= the negative percentage error for the [ % ] limits
= the positive percentage error for the [ % ] limits
= the minimum value for the [ > < ] limits
= the maximum value for the [ > < ] limits
= the minimum value for the [ > ] limit
= the maximum value for the [ < ] limit
B
ONVERSION ETWEEN
New Conversion
% pri
neg% sec
pos%
# #np
δnp
#ns
δns
= the primary ratio number for the [ % ] limits
= the secondary ratio number for the [ % ] limits
= the negative percentage error for the [ % ] limits
= the positive percentage error for the [ % ] limits
= the number of primary turns for the [ # ] limits
= the number of secondary turns for the [ # ] limits
the ± error number of primary turns for the [ # ] limits
=
the ± error number of secondary turns for the [ # ] limits
=
= a factor to make #np and #ns whole numbers in the range 1 to
99999
you to understand the conversion process; they are not intended to be exact
mathematical formulae.
For example, after you have changed from a > < limit which has two values to a
> limit which has only one, changing back will not give the original values
again.
L T
IMIT YPES FOR THE
← #np
← #ns
← (δnp / #np + δns / #ns)
← (δnp / #np + δns / #ns)
← pri ∗ K
← sec ∗ K
← #np ∗ (|neg%| + pos%) / 4
← #ns ∗ (|neg%| + pos%) / 4
VPN 98 - 024
C P
REATING THE
T TR TRL
ESTS AND
Previous
#
%
P
AGE
ROGRAM
3.3.17.